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← ScienceWhich outcome follows a rise above designed impedance in terrestrial microwave backhaul propagation?
A)Increased bit error rate floors✓
B)Improved receiver noise figure
C)Reduced free-space path loss
D)Higher gain antenna efficiency
💡 Explanation
Increased impedance mismatch elevates standing wave ratio, leading to signal reflections; this causes intersymbol interference throughout the transmission channel, increasing the bit error rate floors because the signal integrity degrades therefore rather than improving as optimized impedance mitigates errors.
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